App - System App - System

These challenges will help you understand applicative vulnerabilities.

Login credentials are provided for different challenge, the goal is to obtain additional rights by exploiting program’s weaknesses and get a password to validate challs on the portal.

Prerequisite:
– GDB.
– Knowledges in ASM.
– Knowledges in C language.

challenges 93 Challenges

Results Name Validations Number of points  Explanation for the scores Difficulty ↓↑  Difficulty Author Note  Notation Solution Date
pas_valide ELF x86 - Stack buffer overflow basic 1 7% 23795 5 Lyes 11 25 March 2015
pas_valide ELF x86 - Stack buffer overflow basic 2 5% 16479 10 Lyes 10 10 April 2015
pas_valide PE32 - Stack buffer overflow basic 1% 2320 10 Ech0 8 3 December 2019
pas_valide ELF x86 - Format string bug basic 1 3% 10261 15 Lu33Y 6 8 February 2012
pas_valide ELF x64 - Stack buffer overflow - basic 3% 7921 20 Arod 7 31 May 2015
pas_valide ELF x86 - Format string bug basic 2 2% 5260 20 Lyes 5 8 April 2015
pas_valide ELF x86 - Race condition 2% 6617 20 Lu33Y 10 8 February 2012
pas_valide ELF x64 - Basic heap overflow 1% 1824 10 sourcePerrier 1 13 February 2023
pas_valide PE32+ Format string bug 1% 109 45 Ech0 1 3 December 2019
pas_valide ELF x64 - Stack buffer overflow - Stack pivot 1% 109 40 spikeroot 0 11 July 2024
pas_valide ELF x86 - Stack buffer overflow - C++ vtables 1% 980 40 sebbb 2 20 July 2015
pas_valide ELF x86 - Stack buffer overflow - ret2dl_resolve 1% 420 50 kikko 4 28 February 2019
pas_valide ELF x64 - Logic bug 1% 249 50 sbrk 3 8 July 2017
pas_valide ELF x86 - Bug Hunting - Several issues 1% 138 50 sbrk 3 19 January 2018
pas_valide ELF x86 - Stack buffer and integer overflow 1% 2045 50 Lu33Y 4 8 February 2012
pas_valide ELF ARM - Basic ROP 1% 894 40 pickle 5 11 March 2017
pas_valide ELF x86 - Stack buffer overflow basic 5 1% 1936 50 Lu33Y 1 8 February 2012
pas_valide ELF MIPS - Basic ROP 1% 192 40 dagger 1 7 October 2018
pas_valide ELF RISC-V - Intro - let’s do the ROP 1% 79 40 nobodyisnobody 1 13 February 2023
pas_valide PE32 - Advanced stack buffer overflow 1% 261 35 Ech0 4 3 December 2019
pas_valide ELF x86 - Use After Free - basic 1% 2070 25 Esad 3 26 May 2019
pas_valide ELF x86 - Format String Bug Basic 3 1% 1394 35 Lyes 2 27 May 2015
pas_valide ELF ARM - Stack buffer overflow - basic 1% 1443 25 pickle 7 9 March 2017
pas_valide ELF MIPS - Stack buffer overflow - No NX 1% 565 25 franb 2 28 September 2018
pas_valide ELF x64 - Double free 1% 1091 25 Esad 2 23 March 2021
pas_valide ELF x86 - Stack buffer overflow basic 3 2% 5312 25 Lyes 5 10 April 2015
pas_valide ELF ARM - Stack Spraying 1% 295 30 pickle 4 2 April 2017
pas_valide ELF x64 - Stack buffer overflow - PIE 1% 1168 30 HomardBoy 3 26 March 2021
pas_valide ELF x86 - BSS buffer overflow 2% 4354 30 Lu33Y 7 8 February 2012
pas_valide ELF x86 - Stack buffer overflow basic 4 1% 3041 30 Lu33Y 5 8 February 2012
pas_valide ELF x86 - Stack buffer overflow basic 6 1% 3233 30 TiWim 5 10 March 2016
pas_valide LinKern x64 - Race condition 1% 365 95 franb 3 16 February 2016
pas_valide LinKern x86 - Buffer overflow basic 1 1% 564 85 franb 3 16 February 2016
pas_valide ELF x64 - Sigreturn Oriented Programming 1% 301 90 Arod 4 25 June 2015
pas_valide LinKern x86 - Null pointer dereference 1% 533 90 franb 1 16 February 2016
pas_valide ELF x64 - Syscall chaining 1% 25 95 Njörd 1 11 July 2024
pas_valide LinKern x64 - reentrant code 1% 199 100 franb 2 1 March 2016
pas_valide ELF MIPS - URLEncoded Format String bug 1% 42 100 pickle 0 7 October 2018
pas_valide ELF x86 - Hardened binary 1 1% 829 100 sm0k 3 11 February 2012
pas_valide ELF x86 - Hardened binary 2 1% 656 100 sm0k 3 11 February 2012
pas_valide ELF x86 - Hardened binary 3 1% 389 100 sm0k 1 11 February 2012
pas_valide ELF x86 - Hardened binary 4 1% 457 100 sm0k 2 11 February 2012
pas_valide LinKern MIPSel - Vulnerable ioctl 1% 75 100 pickle 0 23 October 2018
pas_valide LinKern ARM - vulnerable syscall 1% 172 85 pickle 0 22 March 2017
pas_valide ELF x86 - Blind remote format string bug 1% 333 80 Lyes 2 8 June 2015
pas_valide ELF x64 - Remote heap buffer overflow - tcache 1% 315 80 franb 1 5 February 2017
pas_valide ELF x64 - Browser exploit - Intro 1% 107 70 pickle 1 2 November 2018
pas_valide PE32+ Basic ROP 1% 79 75 Ech0 0 6 December 2019
pas_valide ELF x64 - Stack buffer overflow - advanced 1% 1543 55 Arod 4 5 June 2015
pas_valide ELF MIPS - Format String Glitch 1% 91 60 pickle , martin 1 21 October 2018
pas_valide ELF x86 - Information leakage with Stack Smashing Protector 1% 938 60 Arod 2 20 May 2015
pas_valide ELF x64 - File Structure Hacking 1% 114 65 nobodyisnobody 0 27 May 2021
pas_valide ELF ARM - Race condition 1% 163 70 pickle 1 3 June 2017
pas_valide ELF x64 - Heap Filling 1% 114 60 voydstack 0 27 May 2021
pas_valide ELF x64 - Buggy VM 1% 81 70 NonStandardModel 0 10 June 2022
pas_valide ELF x64 - Heap Safe-Linking Bypass 1% 88 70 nobodyisnobody 1 22 October 2021
pas_valide ELF x64 - ret2dl_init 1% 54 70 kikko 0 27 May 2021
pas_valide ELF x86 - Out of bounds attack - French Paradox 1% 134 70 sbrk 3 17 September 2017
pas_valide ELF x86 - Remote BSS buffer overflow 1% 763 75 Tosh 1 6 February 2012
pas_valide ELF x86 - Remote Format String bug 1% 985 75 Tosh 2 6 February 2012
pas_valide ELF x64 - Browser exploit - BitString 1% 40 135 pickle 0 15 December 2018
pas_valide ELF x64 - Seccomp Whitelist 1% 96 120 pickle 0 3 June 2017
pas_valide LinKern x64 - SLUB off-by-one 1% 94 115 Tosh 2 9 May 2019
pas_valide ELF ARM - Heap buffer overflow - Wilderness 1% 47 120 pickle 1 25 March 2017
pas_valide ELF ARM - Heap Overflow 1% 61 120 pickle 1 2 April 2017
pas_valide ELF ARM64 - Heap Underflow 1% 29 120 nobodyisnobody 0 13 February 2023
pas_valide WinKern x64 - Use After Free 1% 32 120 __syscall , Synacktiv 0 27 January 2020
pas_valide ELF x86 - Blind ROP 1% 158 120 franb 0 9 October 2016
pas_valide LinKern x64 - Memory exploration 1% 143 120 franb 2 27 July 2016
pas_valide WinKern x64 - Advanced stack buffer overflow - ROP 1% 44 120 __syscall , Synacktiv 1 27 January 2020
pas_valide ELF x64 - Blind ROP 1% 120 135 franb 1 10 March 2018
pas_valide ELF x64 - Remote Heap buffer overflow 2 1% 152 130 Tosh , Fritz 1 1 July 2015
pas_valide ELF x86 - Remote stack buffer overflow - Hardened 1% 200 115 franb 1 17 August 2016
pas_valide ELF x64 - Advanced Heap Exploitation - Heap Leakless & Fortified 1% 58 135 nobodyisnobody 1 27 May 2021
pas_valide LinKern x64 - RowHammer 1% 109 115 pickle 2 17 March 2019
pas_valide ELF x86 - Hardened binary 5 1% 353 110 sm0k 1 11 February 2012
pas_valide ELF x86 - Hardened binary 7 1% 279 115 Tosh 3 21 January 2013
pas_valide ELF x64 - FILE structure hijacking 1% 70 110 voydstack 3 27 May 2021
pas_valide ELF ARM - Alphanumeric shellcode 1% 52 100 pickle 2 16 March 2017
pas_valide ELF x64 - Blind SROP 1% 20 100 s1m 0 28 December 2023
pas_valide ELF x64 - Heap Hop 1% 6 100 nobodyisnobody 0 11 July 2024
pas_valide ELF ARM - Heap format string bug 1% 95 105 franb 1 3 June 2017
pas_valide ELF ARM - Format String bug 1% 104 110 pickle 2 14 March 2017
pas_valide ELF ARM - Use After Free 1% 117 110 pickle 0 22 March 2017
pas_valide ELF x64 - Heap feng-shui 1% 98 110 laxa 2 4 August 2017
pas_valide ELF x86 - Hardened binary 6 1% 334 115 sm0k 3 11 February 2012
pas_valide ELF x64 - Off-by-one bug 1% 157 110 NeedToLearn 3 19 May 2016
pas_valide LinKern ARM - Stack Overflow 1% 75 110 pickle 0 24 July 2017
pas_valide LinKern x86 - basic ROP 1% 304 110 franb 3 6 May 2016
pas_valide ELF ARM - Heap Off-by-One 1% 76 115 pickle 1 11 March 2017
pas_valide ELF x64 - Advanced blind format string exploitation 1% 7 115 nobodyisnobody 0 11 July 2024
pas_valide ELF x64 - Remote Heap buffer overflow 1 1% 194 115 Tosh 3 26 June 2015
pas_valide ELF ARM64 - Multithreading 1% 21 140 franb 0 13 February 2023

Challenge Results Challenge Results

Pseudo Challenge Lang Date
Joël, hahaha, Joël ? App - Système  PE32+ Basic ROP fr 28 October 2024 at 21:46
Freecs App - Système  ELF x64 - Basic heap overflow fr 28 October 2024 at 21:08
ItsRatchet App - Système  ELF x64 - Basic heap overflow fr 28 October 2024 at 21:08
Klcium App - Système  ELF x86 - Use After Free - basic fr 28 October 2024 at 21:01
ItsRatchet App - Système  ELF x86 - Stack buffer overflow basic 2 fr 28 October 2024 at 20:31
hante App - Système  ELF x86 - Stack buffer overflow basic 6 fr 28 October 2024 at 20:10
dany____m App - Système  ELF x86 - Stack buffer overflow basic 1 fr 28 October 2024 at 19:58
tontonsa App - Système  ELF ARM - Stack buffer overflow - basic fr 28 October 2024 at 18:36
ElectroShocXs App - Système  ELF x86 - Stack buffer overflow basic 3 fr 28 October 2024 at 17:29
djrusskof App - Système  ELF x64 - Basic heap overflow fr 28 October 2024 at 17:27